Container



R. l. DRAKE July 21, 1936.

CONTAINER Filed Feb. 11, 1935 Patented July 21, 1936 UNITED STATESPATENT OFFICE CONTAINER Ronald I. Drake, Appleton, Wis., assignor toMarathon Paper Mills Company, Rothschild, Wis., a corporation ofWisconsin Application February 11, 1935, Serial No. 5,926 10 Claims. 01.229-55) This invention is directed to the means provided for binding andreinforcing the rim of a substantially cylindrical container intendedprimarily, but not exclusively, for the shipment of ice cream in bulk.Containers of this type are constructed of relatively stiff paper-board,and are designed ordinarily for a single service, and such a containerrequires the use of a metal reinforcing strip for the upper rim ormargin in order to stiffen the container and hold it properly distended.

The present invention is directed to the form and construction of such abinding strip and :means for securing it firmly and tightly in place.

l5 Furtherobjects and details will appear from a description of theinvention in conjunction with the accompanying drawing, wherein:-

Figure 1 is a perspective view of a container embodying the features ofthe present invention; Fig. 2 is a sectional detail taken on line 2-2 ofFig. 1;

Fig. 3 is a sectional detail taken on line 3-3 of Fig. 2; and

Fig. 4 is a. perspective detail of a fragment of 35 the binding strip.

The container is formed to provide a substantially cylindrical wall I0formed of paper-board which may be truly cylindrical or slightlytapered, as shown, and of suflicient thickness and stiff- !0 ness toafford an enclosure for several gallons of ice cream, or the like. Itwill be understood, however, that although the present invention isespecially adapted to reinforcement of relatively large containers, itcan be applied with like ad- 5 vantage to containers of smaller size.

The container around its upper rim or margin is provided with a metallicbinding strip which is bent to afford an outer lip ll, an inner lip l2,.and a bend or fold l3 which arches over the 0 upper edge of thecontainer wall. As shown, the outer lip is of greater vertical widththan the inner lip which latter is provided with vertically extendingcrimps or corrugations I4 each of which extends from a point slightlybelow the l5 bend I3 to a point slightly above the lower edge of thelip, leaving the lower edge smooth or uncrimped to bear closely againstthe circumferential surface of the wall Ill. The crimps or corrugationsl4 may, if desired, extend to the lower 0 edge of the rim.

The outerlip is provided with an outwardly extending bead I5 affording acircumferential rib, and is also provided below the bead at recurrentintervals with inwardly extending burred 5 bosses l6 which are formed bypunching the metal of the strip to afford apertures, displacing themetal inwardly at an abrupt angle to provide the bosses mentioned whichsurround the apertures and are adapted to bite into the surface of thewall. The strip thus formed constitutes a 5 binding hoop for the upperedge of the paperboard wall and is applied thereto by spreading the lipssufficiently, as in Fig. 4, to permit the hoop to be slipped on to theupper rim of the container, after which the hoop above and be- 10 lowthe bead is subjected to a rolling or crimping action which serves totightly press together the lips and cause the burred bosses to pierceinto the surface of the container wall, and also causes the corrugationsM to impinge tightly, or, upon 5 application of sufficient pressure, toimbed themselves slightly into the inner surface of the container wall.This insures a tight, firm grip upon the paper-board surface and at thesame time the gripped or corrugated formation of the inner lip affordingsufiicient stiffness to the structure to prevent the lips from spreadingapart when relieved from the grip'ping pressure,' so that after the hoopis set in place it will retain its shape and thus serve as a stiffeningand reinforcing member for the rim of the container.

The'crimping or corrugating of the inner lip is also of advantage ingiving to the hoop the cylindrical form required in that the crimpingoperation serves to take up the surplus metal present by reason of thereduced radius of curvature of the inner lip as compared with the outerlip, and the stiffness afforded by the corrugations not only preventsthe spreading of the lips when forced into gripping relation to oneanother, but r also affords the stiffness required to maintain thecircular configuration of the container. This stiffness is alsoincreased by the circumferential head which being medially located doesnot interfere with the rolling or crimping of the hoop 40 required infastening it to the rim of the container.

Although the invention is particularly adapted for use in thereinforcement of containers of the class described, the binding strip orhoop of the present invention is well adapted for other uses in which itis desirable to provide a metal reinforcement for the edge of a fibroussheet or wall, so that it will be understood that it is not theintention, unless otherwise indicated in the claims, to strictly limitthe invention to the particular use shown and described.

I claim:

1. In a container, the combination of. a curving wall of fibrousmaterial and a. metallic hoop secured to the rim of the wall, the hoopcomprising inner and outer lips in'contacting relation to the inner andouter surfaces of the wall, and a connecting bend overlapping the edgeof the wall, one of the lips being provided with inwardly extendingbosses impinging into the adjacent surface .of the container wall andthe other lip being provided with vertical stiffening corrugationsextending from points above its uncorrugated edge and toward the bendand adapted to hold the two lips in biting relation to one another.

2. -In a container, the combination of a curving wall of fibrousmaterial and a reinforcing hoop therefor comprising inner and outer lipsin spaced relation to one another and connected 'by a bend, theouter lipbeing provided with a secured to the rim of the wall, the hoopcomprising inner and outer lips in contacting relation to the inner andouter surfaces of the wall, and a connecting bend overlapping the edgeof the wall, one of the lips being provided with inwardly extendingbosses impinging into the adjacent surface of the container wall and theother lip being provided with stiffening corrugations adapted to holdthe two lips in biting relation to one another, the lip with the bossesbeing also provided with an outwardly extending circumferential beadfurnishing a reinforcing rib.

4. In a container, the combination of a curving wall of fibrous materialand a metallic hoop secured to the rim of the wall, the hoop comprisinginner and outer lips in contacting relation to the inner and outersurfaces of the wall, and a connecting bend overlapping the edge of thewall, one of the lips being provided with inwardly extending bossesimpinging into the adjacent surface of the container wall and the otherlip affording the necessary resistance to hold the bosses in impingingrelation,- the lip with the bosses being also provided with an outwardlyextending circumferential bead furnishing a reinforcing rib.

5. In a container, the combination of a curving wall of fibrousmaterial'and a metallic hoop secured to the rim of the wall, the hoopcomprising inner and outer lips in contacting relation to the inner andouter surfaces of the wall, and a connecting bend overlapping the edgeof the wall, the outer lip being provided with inwardly extending bossesimpinging into the adjacent surface of the container wall andthe innerlip being provided with stiflening corrugations adapted to hold the twolips in biting relation. to one another, and the outer lip being alsoprovided with an outwardly struck circumferentially extending beadfurnishing a reinforcing rib.

6. In combination with a fibrous wall, a metallic binder having innerand outer lips and a connecting bend embracing the edge of the wall withthe lips in contact with the opposite surfaces of the wall, one of thelips being provided with in- 5 wardlyextending bosses and the other lipbearing closely against the opposite surface of the wall to hold thebosses in impinging relation to the surface of the wall, the lip withthe bosses being also provided with an outwardly extending 10circumferential bead furnishing a reinforcing rib.

'7. In combination with a fibrous wall, a metallic binder having innerand outer lips and a connecting bend embracing the edge of the wall 15with the lips in contact with the opposite surfaces of the wall, one of.the lips being provided with inwardly extending bosses and the other lipbearing closely against'the opposite surface of the wall to hold thebosses in impinging relation to the surface of the wall, the lip withthe bosses being also provided with a continuous circumferential beadoutwardly struck along a medial line and above the bosses and serving toreinforce the lip.

8. In combination with a fibrous wall, a metal binder having inner andouter lips and a connecting bend embracing the edge of the wall with thelips in contact with the opposite sides of the wall, one of the lipsbeing provided with vertical stifiening corrugations extending frompoints above its uncorrugated edgeand toward the bend and the other lipbearing closely against the opposite surface of the wall to hold thecorrugations in impinging relation to the proximate surface of the wall.

9; In combination with a fibrous wall, a metal binder having inner andouter lipsand a connecting bend embracing the edge of the wall with thelips in contact with the opposite sides of the 40 Wall, one of the lipsbeing provided with vertical stiffening corrugations extending frompoints above its uncorrugated edge and toward the bend and the other lipbearing closely against the opposite surface of the wall to hold thecorrugations in impinging relation to the proximate surface of the wall,and the last-named lip being provided with an outwardly strucklongitudinally extending bead furnishing a reinforcing rib.

10. In combination with a fibrous wall, a metal binder having inner andouter lips and a connecting bend embracing the edge of the wall with thelips in contact with opposite surfaces of the wall, one of the lipsbeing provided with inwardly extending bosses formed by punching the lipto afford apertures surrounded by abruptly inwardly protruding burrsadapted to bite into the fibrous wall and the other lip bearing closelyagainst the opposite surface of the wall to hold the bosses in impingingrelation to the surface of the wall, said first lip being provided withan outwardly struck longitudinally extending bead furnishing areinforcing rib.

RONALD I. DRAKE.

